Hair drug testing: Many street drugs (or their breakdown products in the body) are absorbed into the hair. A sample of hair can be tested for recent drug use. Hair analysis: Testing of hair for toxic exposures, such as lead or mercury poisoning.
Gas Water Heater, water not hot enough-Thermostat or Sediment. The dip tube probably disintigrated. The dip tub sends cold water to the bottom of the tank for heating when its heated it rises to the top of the tank. Its possible that the dip tube broke of and now you have cold water mixing with the hot water on top.
Best Answer: one of the most common cause is blockage in the pick up tube on it,,also it could have a bad head gasket,,this will make it transfer heat,,back and forth from cylinder to cylinder,,even though the water pump,,and everything works good,,you said it had a new pump in it,,are you sure the impeller is turned the right way in it,,some of ...